<template>
  <!-- <nav>
    <router-link to="/">Home</router-link> |
    <router-link to="/about">About</router-link>
  </nav> -->
  <router-view/>
</template>
<script>
import axios from 'axios'

export default {
  name: 'app',
  // 防止数据丢失
  created () {
    //在页面加载时读取sessionStorage里的状态信息
    if (sessionStorage.getItem("store") ) {
      this.$store.replaceState(Object.assign({}, this.$store.state, JSON.parse(sessionStorage.getItem("store"))))
    }
    //在页面刷新时将vuex里的信息保存到sessionStorage里
    window.addEventListener("beforeunload",()=>{
      sessionStorage.setItem("store", JSON.stringify(this.$store.state))
    })
    //获取标签
    axios.get("http://localhost:8888/tag/tags").then(data=>{
      if(data.data.data != null){
        this.$store.commit('setTags',data.data.data);
        console.log(this.$store.state.tags);
      }
    })
  }
}
</script>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}

nav {
  padding: 30px;
}

nav a {
  font-weight: bold;
  color: #2c3e50;
}

nav a.router-link-exact-active {
  color: #42b983;
}

/* table {
  border-top: 1px solid #ccc;
  border-left: 1px solid #ccc;
}
table td,
table th {
  border-bottom: 1px solid #ccc;
  border-right: 1px solid #ccc;
  padding: 3px 5px;
}
table th {
  border-bottom: 2px solid #ccc;
  text-align: center;
} */

/* blockquote 样式 */
blockquote {
  display: block;
  border-left: 8px solid #d0e5f2;
  padding: 5px 10px;
  margin: 10px 0;
  line-height: 1.4;
  font-size: 100%;
  background-color: #f1f1f1;
}

/* code 样式 */
code {
  display: inline-block;
  display: inline;
  zoom: 1;
  background-color: #f1f1f1;
  border-radius: 3px;
  padding: 3px 5px;
  margin: 0 3px;
  
}
pre code {
  display: block;
  background-color: #e4e4e4 !important;
}

/* ul ol 样式 */
ul, ol {
  margin: 10px 0 10px 20px;
}
</style>
